Axial tensile and compressive strain effects on the critical current of Bi-2223 superconducting tapes

Zhaoyang Lu; Xuqiang Huang; Yanfa He; Jinghui Li; Jing Sun; Yinan Wang; Xihua Zong; Jinxing Wang; Liangyu Chen; Chengshan Li; Pingxiang Zhang; Yong Feng; Lian Zhou

doi:10.1016/S0921-4534(02)02244-X

Axial tensile and compressive strain effects on the critical current of Bi-2223 superconducting tapes

Zhaoyang Lu, Xuqiang Huang, Yanfa He, Jinghui Li, Jing Sun, Yinan Wang, Xihua Zong, Jinxing Wang, Liangyu Chen, Chengshan Li, Pingxiang Zhang, Yong Feng, Lian Zhou

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

The effects of axial strains ε_a on the critical current of Bi-2223/Ag and Bi-2223/AgMn tapes produced by the powder-in-tube method have been studied at 77 K. The normalized critical current I_cn vs axial strain ε_a curves I_cn(ε_a), and its empirical formulae as I_cn=1-(ε_a/a)^b, where a and b are constants, have been obtained. The critical current degrades more rapidly under large axial tensile strains than under axial compressive strain. The irreversible strain limit of 19-filament, 37-filament Bi-2223/Ag and 61-filament Bi-2223/AgMn superconducting tapes are 0.23-51%, 0.30-36% and 0.43-0.54%, respectively. Strain rate has influence on the irreversible strain limit. The whole I_cn(ε_a) curve is divided into four ranges: Compressive strain regime, first tensile strain regime, second tensile strain regime, third tensile strain regime.

Original language	English
Pages (from-to)	158-161
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	386
DOIs	https://doi.org/10.1016/S0921-4534(02)02244-X
State	Published - 15 Apr 2003
Externally published	Yes
Event	ICMC 2002 - Xi an, China Duration: 16 Jun 2002 → 20 Jun 2002

Keywords

Axial compress
Axial tensile
Bi-2223
Strain effects

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10.1016/S0921-4534(02)02244-X

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title = "Axial tensile and compressive strain effects on the critical current of Bi-2223 superconducting tapes",

abstract = "The effects of axial strains εa on the critical current of Bi-2223/Ag and Bi-2223/AgMn tapes produced by the powder-in-tube method have been studied at 77 K. The normalized critical current Icn vs axial strain εa curves Icn(εa), and its empirical formulae as Icn=1-(εa/a)b, where a and b are constants, have been obtained. The critical current degrades more rapidly under large axial tensile strains than under axial compressive strain. The irreversible strain limit of 19-filament, 37-filament Bi-2223/Ag and 61-filament Bi-2223/AgMn superconducting tapes are 0.23-51%, 0.30-36% and 0.43-0.54%, respectively. Strain rate has influence on the irreversible strain limit. The whole Icn(εa) curve is divided into four ranges: Compressive strain regime, first tensile strain regime, second tensile strain regime, third tensile strain regime.",

keywords = "Axial compress, Axial tensile, Bi-2223, Strain effects",

author = "Zhaoyang Lu and Xuqiang Huang and Yanfa He and Jinghui Li and Jing Sun and Yinan Wang and Xihua Zong and Jinxing Wang and Liangyu Chen and Chengshan Li and Pingxiang Zhang and Yong Feng and Lian Zhou",

year = "2003",

month = apr,

day = "15",

doi = "10.1016/S0921-4534(02)02244-X",

language = "英语",

volume = "386",

pages = "158--161",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

note = "ICMC 2002 ; Conference date: 16-06-2002 Through 20-06-2002",

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TY - JOUR

T1 - Axial tensile and compressive strain effects on the critical current of Bi-2223 superconducting tapes

AU - Lu, Zhaoyang

AU - Huang, Xuqiang

AU - He, Yanfa

AU - Li, Jinghui

AU - Sun, Jing

AU - Wang, Yinan

AU - Zong, Xihua

AU - Wang, Jinxing

AU - Chen, Liangyu

AU - Li, Chengshan

AU - Zhang, Pingxiang

AU - Feng, Yong

AU - Zhou, Lian

PY - 2003/4/15

Y1 - 2003/4/15

N2 - The effects of axial strains εa on the critical current of Bi-2223/Ag and Bi-2223/AgMn tapes produced by the powder-in-tube method have been studied at 77 K. The normalized critical current Icn vs axial strain εa curves Icn(εa), and its empirical formulae as Icn=1-(εa/a)b, where a and b are constants, have been obtained. The critical current degrades more rapidly under large axial tensile strains than under axial compressive strain. The irreversible strain limit of 19-filament, 37-filament Bi-2223/Ag and 61-filament Bi-2223/AgMn superconducting tapes are 0.23-51%, 0.30-36% and 0.43-0.54%, respectively. Strain rate has influence on the irreversible strain limit. The whole Icn(εa) curve is divided into four ranges: Compressive strain regime, first tensile strain regime, second tensile strain regime, third tensile strain regime.

AB - The effects of axial strains εa on the critical current of Bi-2223/Ag and Bi-2223/AgMn tapes produced by the powder-in-tube method have been studied at 77 K. The normalized critical current Icn vs axial strain εa curves Icn(εa), and its empirical formulae as Icn=1-(εa/a)b, where a and b are constants, have been obtained. The critical current degrades more rapidly under large axial tensile strains than under axial compressive strain. The irreversible strain limit of 19-filament, 37-filament Bi-2223/Ag and 61-filament Bi-2223/AgMn superconducting tapes are 0.23-51%, 0.30-36% and 0.43-0.54%, respectively. Strain rate has influence on the irreversible strain limit. The whole Icn(εa) curve is divided into four ranges: Compressive strain regime, first tensile strain regime, second tensile strain regime, third tensile strain regime.

KW - Axial compress

KW - Axial tensile

KW - Bi-2223

KW - Strain effects

UR - http://www.scopus.com/inward/record.url?scp=0037445728&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(02)02244-X

DO - 10.1016/S0921-4534(02)02244-X

M3 - 会议文章

AN - SCOPUS:0037445728

SN - 0921-4534

VL - 386

SP - 158

EP - 161

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

T2 - ICMC 2002

Y2 - 16 June 2002 through 20 June 2002

ER -

Axial tensile and compressive strain effects on the critical current of Bi-2223 superconducting tapes

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